CS248987B1

CS248987B1 - Inlet and outlet chambers of vertical steam heaters for atomic power plants

Info

Publication number: CS248987B1
Application number: CS564884A
Authority: CS
Inventors: Ludovit Kozolka
Original assignee: Ludovit Kozolka
Priority date: 1984-07-23
Filing date: 1984-07-23
Publication date: 1987-03-12

Abstract

Zariadenie sa týká vstupných a výstupných komQr vertikálnych separátorov — paroprihrievačov pre atomové elektrárně, ktoré zlepšujú přístupnost k rozvádzacím rúrkam pre kazety, ako aj znižujú hmotnost, pracnost a manipuláciu v prevádzke zariadenia. Podstatou je, že teleso komory má po vnútornom obvode vytvorenú drážku, do ktorej zapadá nosný trojdielny krúžok, na vonkajšom obvode telesa komory sú vytvořené tri otvory so závitom. Vyrovnávajúci krúžok prilieha k trojdielnemu krúžku, na ktorý prilieha tvarové tesnenie, pričom veko opatřené sklopnými rukovaťmi a nosným uchom a přítlačná příruba sú pevne spojené skrutkou, pod ktorou je umiestnená pružná podložka. Zariadenie je možné využit' u všetkých výmenníkov tepla, kde priemer a hmotnost veka nepresahujú manipulačně hodnoty.The device relates to the inlet and outlet chambers of vertical separators — steam heaters for nuclear power plants, which improve accessibility to the distribution pipes for the cartridges, as well as reduce the weight, laboriousness and manipulation in the operation of the device. The essence is that the chamber body has a groove formed along the inner circumference, into which the supporting three-part ring fits, three threaded holes are formed on the outer circumference of the chamber body. The balancing ring abuts the three-part ring, to which the shaped seal abuts, while the lid equipped with folding handles and a supporting ear and the pressure flange are firmly connected by a screw, under which a flexible washer is placed. The device can be used in all heat exchangers, where the diameter and weight of the lid do not exceed the handling values.

Description

Vynález sa týká vstupných a výstupných komor vertíkálnych separátorov — paroprihrievačov pre atomové elektrárně, ktoré zlepšujú přístupnost k rozvádzacím rúrkam pre kazety, ako aj znižujú hmotnost, prácnost a manipuláciu v- prevádzke zariadenia. U doteraz vyrábaných a známých separátorov — paroprihrievačov vertikálneho prevedenia sú na čelnej straně vstupných a výstupných komor privarené príruby s krkom, ku ktorým sú priskrutkované slepě príruby. Vzhladom na tlak a teplotu po pevnostnej stránke vychádzajú príruby s krkom ako aj samotné komory, vzhladom na obvodový zvar, značné dlhé, čo sťažuje prácu a přístupnost k rozvádzacím rúrkam v čase demontáže a opravy. Zaslepovacie príruby sú značné tažké. Pre vyvodenie tesniacich účinkov na prírubu pomocou skrutiek si vyžaduje značnú časovú a fyzická náročnost. Manipulácia vo vnútri komory v čase opravy rozvádzacích rúrok si vyžaduje použitie špeciálnych prípravkov.BACKGROUND OF THE INVENTION The present invention relates to inlet and outlet chambers of vertical separators - steam heaters for atomic power plants - which improve access to distribution pipes for cassettes as well as to reduce weight, labor and handling of equipment operation. Flanges with a neck are welded to the front side of the inlet and outlet chambers to which the flanges are screwed. Because of the pressure and temperature strength, the neck flanges as well as the chambers themselves, with respect to the circumferential weld, emerge considerably long, making work and accessibility to the distribution pipes at the time of dismantling and repair difficult. Blanking flanges are heavy. To produce sealing effects on the flange by means of screws requires considerable time and physical demands. The handling inside the chamber at the time of repair of the distribution pipes requires the use of special preparations.

Vyššie uvedené nedostatky odstraňuje novovyvinutá vstupná a výstupná komora podlá vynálezu, ktorej podstatou je, že teleso komory má po vnútornom obvode vytvorenú drážku, do ktorej zapadá nosný trojdielny krúžok, na vonkajšom obvode telesa komory sú vytvořené tri otvory so závitom, vyrovnávajúci krúžok prilieha k trojdielnému krúžku, na ktorý prilieha tvarové tesnenie, veko a přítlačná príruba sú pevne spojené skrutkami. Výhody vynálezu spočívajú v tom, že sa skráti dížka komory a tým sa zlepší přístupnost k rozvádzacím rúrkam. Ďalej sa zníži hmotnost a prácnosť celej komory, ako aj tesniace účinky.The above-mentioned drawbacks are eliminated by the newly developed inlet and outlet chambers according to the invention, the principle of which is that the chamber body has a groove formed on the inner periphery, into which a three-piece ring engages, three threaded holes are formed on the outer periphery of the chamber body, the aligning ring is adjacent to the three-part the ring on which the shape seal, the lid and the pressure flange adhere to the screws. The advantages of the invention are that the length of the chamber is shortened and thus the accessibility to the distribution pipes is improved. Furthermore, the weight and labor of the entire chamber is reduced, as well as sealing effects.

Na připojených výkresoch na obr. 1 je znázorněný celkový pohlad na separátor — paroprihrievač, obr. 2 znázorňuje vstupní! i výstupnú komoru v řeze podfa vynálezu, obr. 3 je čelný pohlad na vstupnú i výstupnú komoru podlá vynálezu.1 shows the overall view of the separator - steam heater, FIG. FIG. 3 is a front view of the inlet and outlet chambers of the present invention.

Claims

SUBJECT

Inlet and outlet chambers of vertical separators - steam superheaters for atomic power plants, characterized in that the chamber body (5) has a groove formed on its inner circumference, into which the supporting three-part ring (10) fits and on the outer circumference

The inlet chamber 3 and the outlet chamber 4 are provided with an inlet extension 6 and a drainage extension 7.

The chamber body 5 is adapted to be welded on the side of the tubesheet. On the other hand, a groove for the three-piece carrier ring 10 is formed on the inner side of the chamber body 5. The chamber body 5 has three screw threaded holes 27 on the outer circumference of 120 ° for removing the three-piece carrier ring 10. For three-piece the support ring 10 abuts the alignment ring 9. The seal 8 has a flat surface on the alignment ring side 9. It has a trapezoidal shape on the lid side 16. The lid 16 is of circular shape and has an outer surface with a bearing surface for the three-piece bearing ring 10, a trapezoid pressing surface which presses the gasket 8 when screwed into a solid assembly by a screw 13 with a pressing flange 11. The spring washer 12 provides sealing effects in the event of thermal shock and the bolt extensions 13. The lid 16 is provided with threaded holes for the bolts 13, the carrying lug 14, which serves to remove the lid 16.

Furthermore, they are support ears 18 for gripping the folding handles 15. The pressure flange 17 has a shoulder as well as screw holes 13 on the inner circumference. When disassembled, the cover 16 is carried by a support tube 22 which is connected to a support profile 24 welded to the body. 5 chambers. The washer 23 is welded to the support tube 22. At the bottom of the support tube 22, a cotter pin hole 25 is formed. Above the cotter pin 25 is a washer 26. During handling, the cap 16 is carried over the carrying handle 14 and support bolt 20 by nut 19, below. which is a washer 21.

The invention can be advantageously applied to all heat exchangers where the diameter and weight of the lid do not exceed the handling values.

In the inventive body (5j of the chamber, three threaded holes (27) are formed, the alignment ring (9) abutting the three-piece ring (10) to which the shaped gasket (8) abuts, the lid (16) and the pressing flange (17) are fixed. bolted together (13).